Client Server (Async) exchange HBufC data type

[Zaibach]

I use the example of Inter Process Communication with Client Server Async Example ( in S60 SDK Symbian 8.0a).
Now I have to exchange more data, from server to client (until 5k Byte).
I try to use HBufC but I don't konw the right way.

I try this:

void RServerSession::Request( TDes8& aReq, TDes8& aRes, TRequestStatus& aStatus)
{

const TAny* messageParameters[KMaxMessageArguments];

iDataTx.Set( reinterpret_cast<TUint8*>( &aReq ), sizeof( aReq ), sizeof( aReq ) );
iDataRx.Set( reinterpret_cast<TUint8*>( &aRes), sizeof( aRes), sizeof( aRes) );
p[0] = static_cast<TAny*> ( &iDataTx );
p[1] = static_cast<TAny*>( &iDataRx );

SendReceive( EPssbServRequestCommandPerform, p, aStatus );

}

Where in RServerSession:
TPtr8 iDataTx;
TPtr8 iDataRx;


and in the I call this function from the Handler with:
iRServerSession.Request( iCommand, iResponse, iStatus );

Where in the Handler.h:
HBufC8* iCommand;
HBufC8* iResponse;

and in the Handler::ConstructL()

iCommand = HBufC8::NewL(5069);
iResponse = HBufC8::NewL(5069);


BUT when i run this code, in the server side, I can't read the data and when I try to use iMessage.WriteL in this way:

_LIT8(KResponse, "tx file: 0123456789123456789");
TBuf8<100> response(KResponse);
TRAPD( resW, iMessage.WriteL( iMessage.Ptr1(), response) );

The resW is equal at KErrOverflow=(-9);


My question is:
Is there a way to exchange data using HBufC between client and server?

[wizard_hu_]

sizeof(TDes8) is not something I would use in this case. I would rather use TDes8::Length and TDes8::MaxLength.

[Zaibach]

thanks to replay.

I use your suggestion but It doesn't work on mobile
In the server i see
RMessage.WriteL = -38